一种隐藏和提取版权控制数据的技术方案

研究了数字内容的版权控制问题，提出了一种隐藏和提取版权控制数据的技术方案．此方案基于整形小波变换，通过对部分小波系数的特殊量化来隐藏数字许可和版权标识，其提取不需要知道原始数字内容．隐藏版权标识用于证明内容的版权归属，隐藏数字许可用于限制用户的播放行为．文章在讨论版权控制框架和模型的基础上。对版权控制数据的隐藏和提取过程进行了算法描述，并且说明了在低频部分隐藏数字许可增加鲁棒性，在所有频带隐藏版权标识监测完整性。

Technological Scheme of Hiding and Extracting Copyright Control Data

At present, the research on text content, image content, video and audio content is mainly about copyright protection, and seldom involves the copyright control. This paper studies the copyright control of digital content and proposes a technical scheme of hiding and extracting copyright control data. Based on integer wavelet transform, our scheme hides digital permission and copyright identification through the special quantification of partial wavelet, which can be extracted without knowing the original digital content,while hiding copyright identification is used to prove of the copyright ownership for digital content, while hiding the digital permission to restrict the user's playing behavior. On the basis of discussing the copyright control frame and model here, this paper not only descibes hiding and extracting for copyright control data by algorithm form, but also explains the hiding digital permission increase robusticity in the part of low frequency and the hiding copyright identification detecting integrity in all frequency.